Record size sensing apparatus for tone arm positioning



Feb. 2, 1965 H. cccccc EN 3,168,317

RECORD SIZE SENSING APPARATUS FOR TONE ARM POSITIONING In l Hlm) l ATM' u H. c. HANSEN 3,168,317

RECORD SIZE sENsING APPARATUS FOR TONE ARM POSITIONING Feb. 2, 1965 22 Sheets-Sheet 2 Original Filed May 12, 1951 INVENTOR Hans Christian Hansen BY f Armen/67S H. c. HANSEN 3,168,317

RECORD SIZE SENSING APPARATUS FOR TONE ARM POSITIONING Feb. 2, 1965 22 Sheets-Sheet 5 Original Filed May 12 1951 INVENTOR Hana Christien Hansen H. c. HANSEN 3,168,317

RROORO sIzR sRNsING APPARATUS FOR TONE ARM POSITIONING Feb. 2, 1965 22 Sheets-Sheet 4 Original Filed May 12, 1951 INVEN TOR Hans Christian Hansen H. c. HANSEN 3,168,317

RECORD SIZE sENsING APPARATUS EoR TONE ARM PosIToNING Feb. 2, 1965 22 Sheets-Sheet 5 Original Filed May 12, 1951 INVENTOR Hans Christian Hansen BY #uf v Feb. 2, 1965 H. c. HANSEN 3,168,317

RECORD SIZE SENSING APPARATUS FOR TONE ARMA POSITIONING Original Filed May 12, 1951 gg Sheets-Sheet 6 INV'ENTOR Hens Christian Hsussn fi rrae me Ys H. C. HANSEN Feb. 2, 1965 RECORD SIZE SENSING APPARATUS FOR TONE ARM POSITIONING Original Filed May 12. 195] 22 Sheets-Sheet 7 H. c. HANSEN 3,168,317

RECORD SIZE sENsING APPARATUS FOR TONE ARM PosITroNING Feb. 2, 1965 22 Sheets-Sheet 8 Original Filed May 12, 195] INVENTOR Hens Christian Hansen BY Qak/ H. C. HANSEN Feb. 2, 1965 RECORD SIZE SENSING APPARATUS FOR TONE ARM POSITIONING 22 Sheets-Sheet lO Original Filed May 12, 195] INVENTOR Hans Christian Hansen BY QoJ/ Arran/uam Feb. 2, 1965 H. c. HANSEN 3,168,317

RECORD SIZE SENSING APPARATUS FOR TONE ARM POSITIONING Original Filed May 12, 195] 22 Sheets-Sheet 1l INVENTOR Hens Christian Hansen BY ,(Q' Agn# 2 Feb. 2, 1965 H. c. HANSEN 3,168,317

RECORD SIZE SENSING APPARATUS FOR TONE ARM POSITIONING Original Filed May 12, 1951 22 Sheets-Sheet 12 INV'ENTOR Hans Christien Hansen BY AQMLJM?,

Feb. 2, 1965 H. c. HANSEN 3,168,317

RECORD SIZE SENSING APPARATUS FOR TONE ARM POSITIONING Original Filed May l2. 195] 22 Sheets-Sheet 13 3204 slab -1 wb 3026 L il .l

(saab 2x5 INVENTOR Hans Christian Hansen Feb. 2, 1965 H. c. HANSEN 3,168,317

RECORD SIZE SENSING APPARATUS FOR TONE ARM POSITIONING Original Filed May 12. 195] 22 Shgets-Sheet 14 OUT U V X P10 Z INVEHT 0R Hans Christian Hansen BY @Amr H. C. HANSEN Feb. 2, 1965 RECORD SIZE SENSING APPARATUS FOR TONE ARM POSITIONING 22 Sheets-Sheet 15 Original Filed May 12, 1951 lllll TIF INVENTOR Hans Christian Hansen ATTORNEYS H. C. HANSEN Feb. 2, 1965 3,168,317

RECORD SIZE sENsING APPARATUS FOR TONE ARM POSITIONING 22 Sheets-Sheet 16 Original Filed May 12. 195] INVENTOR Hans Christian Hansen BY @AGREE 631m?r RTT@ @n EyS Feb. 2, 1965 H. c. HANSEN 3,168,317

RECORD SIZE SENSING APPARATUS FOR TONE ARM POSITIONING Original Filed May 12, 195] 22 Sheets-Sheet 17 INVENTOR Hans Christian Hansen Feb. 2, 1965 H. c. HANSEN 3,168,317

RECORD S121: sENsING APPARATUS FoR TONE ARM PosITIoNING original Filed May 12. 1951 v 22 sheets-sheet 1s INVEMT OR Hans Christian Hansen BY @idea/' HTfoRn EVS Feb. 2, 1965 H. c. HANSEN 3,168,317

RECORD SIZE SENSING APPARATUS FOR TONE ARM POSITIONING Original Filed May 12, 195] 22 Sheets-Sheet 19 INVENTOR Hans Christian Hansen BY fr QTTOQ n E VS Feb. 2, 1965 Original Filed May 12. 195] H. c. HANSEN 3,168,317

RECORD SIZE SENSING APPARATUS FOR TONE ARM POSITIONING 22, Sheets-Sheet 2O 132e el 309e sf/c a2ac am L1 302 (306e l206e,

307e 3f 7c 3" 00a INVENTOR mJroRnEys 

10. A RECORD-CHANGING PHONOGRAPH IN WHICH THE SIZE OF THE NEXT RECORD TO BE PLAYED IS GAUGED BY MEANS OF AN ABUTMENT ON THE TONE ARM, COMPRISING A TURN-TABLE FOR SUPPORTING THEREON THE RECORD TO BE PLAYED, A STATIONARY SPINDLE PROJECTING UPWARDLY FROM SAID TURN-TABLE FOR CENTERING THE RECORD TO BE PLAYED WITH RESPECT TO SAID TURNTABLE AND INCLUDING MEANS FOR SUPPORTING THEREON AT LEAST ONE RECORD TO BE PLAYED IN SPACED RELATIONSHIP TO SAID TURNTABLE, A TONE ARM, A TONE ARM SPINDLE STRUCTURE FOR SUPPORTING THEREON SAID TONE-ARM TO SWING ABOUT AN AXIS OF ROTATION, AND MEANS INCLUDING ROTATABLE CAM MEANS AND AN ELONGATED CAM ENGAGING MEMBER FORMING EFFECTIVELY A UNITARY STRUCTURE WITH SAID TONE ARM SPINDLE STRUCTURE FOR SWINGING MOVEMENT IN UNISON THEREWITH FOR MOVING SAID TONE ARM AGAINST THE RECORD TO BE PLAYED NEXT TO GAUGE THE SIZE THEREOF BY SAID ABUTMENT MEANS WHILE SAID NEXT RECORD IS SUPPORTED BY SAID FIRST-MENTIONED MEANS N SAID SPINDLE IN SPACED RELATIONSHIP WITH SAID TURN-TABLE. 